Abstract: We analyzed the September 2026 earnings revision for STAR50 index component stocks, estimating the index's 2026E EPS fell to 25.14 from 26.94 in August, a decline of 6.7% month on month, while the index itself dropped 9.2% from 1,684 to 1,530. Individual stock EPS revisions contributed -¥1.34 to the index EPS change, with 15 stocks revised up versus 16 revised down. The largest drag came from Biwin Storage (688525 CH), whose EPS revision alone attributed -¥1.17 to the index, reflecting a 13.2% cut to its 2026E EPS. On the positive side, RAYTRON TECHNOLOGY (688002 CH) contributed +¥1.04 to index EPS, driven by a 69.7% upward EPS revision, while CAMBRICON (688256 CH) added +¥0.18 due to weight drift. Among the sharpest individual EPS moves, METAX INTEGRATED CIRCUITS (688802 CH) and ASR MICROELECTRONICS (688220 CH) saw the largest upward revisions at +375% and +243% respectively, while VeriSilicon (688521 CH) led declines with a 89.1% cut to its 2026E EPS estimate. On revenues, RAYTRON TECHNOLOGY posted the strongest upgrade at +17.3%, while SICHUAN HUAFENG TECHNOLOGY (688629 CH) saw the steepest revenue cut at -30.3%.
Biwin Storage, APT MEDICAL, VeriSilicon, NEXCHIP SEMICONDUCTOR, CAMBRICON, METAX INTEGRATED CIRCUITS
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